"Writers' Program of the Work Projects Administration in the State of Oklahoma," . . "Oklahoma (Estados Unidos)" . . "Automobile travel." . . "Travel." . . "Automobile travel Oklahoma Guidebooks." . . . . . . "Oklahoma, a guide to the Sooner State" . "Oklahoma, a guide to the Sooner State"@en . . . . . "Oklahoma : a guide to the Sooner State"@en . "Oklahoma : a guide to the Sooner State" . . . "Oklahoma; a guide to the Sooner state" . . "Oklahoma (Writers' Program of the Work Projects Administration in the State of Oklahoma)"@en . . . . . . . "Oklahoma : a guide to the Sooner state" . "Oklahoma : a guide to the Sooner state"@en . . . . . . . "Guidebooks"@en . . "Guidebooks" . "Oklahoma a guide to the Sooner State"@en . . . . . . "Oklahoma a guide to the Sooner state" . "Oklahoma a guide to the Sooner state"@en . . "History"@en . . . . . . . . . . . . . . . . "American guide series." . . "Oklahoma" . . "Oklahoma." . "Federal Writers' Project, Oklahoma." . .